A multi-point filling method for full tailings in the goaf of a mine
A goaf, full tailings technology, applied in the fields of filling, separation methods, chemical instruments and methods, etc., can solve the problem that the internal structure of the goaf cannot be accurately known, the goaf affects the filling effect, and the quality of filling and cementation is poor. and other problems to achieve the effect of improving the dehydration effect, improving the filling effect, and reducing the flow distance
Active Publication Date: 2022-03-08
临沂会宝岭铁矿有限公司
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Problems solved by technology
Since some of the residual ore between the outlets of the mine cannot be recovered after the mining is completed, multiple residual ore piles will be formed in the goaf. Poor quality and poor dehydration
[0003] In addition, the internal structure of the goaf will also affect the filling effect
In the prior art, for goafs with low filling heights, measuring ropes are usually used to measure the filling height, but this method can only measure the filling conditions at both ends of the mine house; for goafs with high filling heights, such as above 50m, In the prior art, the filling situation is usually directly observed with the naked eye
None of the above methods can accurately obtain the internal structure of the goaf, which affects the filling effect
Method used
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Embodiment 1
[0045] This embodiment specifically carries out the filling experiment in Huibaoling Iron Mine, wherein the height of the mine room is 70m, the length of the mine room is 60m, and the width of the mine room is the thickness of the ore body (5-30m); Multiple remaining ore heaps (10-20m in height) are formed in the goaf.
[0046] The method for filling the above-mentioned mined-out area includes the following steps:
[0047] Use a 3D laser scanner to scan the goaf (such as image 3 shown), to obtain the goaf volume and the scanning model of the internal structure of the goaf (such as Figure 4 shown);
[0048] Based on the length direction of the mine house, a first filling retaining wall and a second filling retaining wall are respectively set at both ends of the bottom of the mine house, and a third filling retaining wall is set at each outlet of the mine house to close the goaf area, wherein the first filling retaining wall, the second filling retaining wall and the third ...
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Abstract
The invention provides a multi-point filling method for whole tailings in a goaf of a mine, and belongs to the technical field of goaf filling. The invention adopts three-dimensional scanning technology to accurately know the internal structure of the gob, and can accurately calculate the bottom cemented filling amount and detect the filling height, which is beneficial to improving the filling effect and realizing high-precision filling; Full tailings filling at the bottom can reduce the flow distance of cement slurry and reduce the degree of tailings segregation. The bottom cementing filling effect is good, and it can effectively protect the first filling retaining wall and the second filling retaining wall set at both ends of the bottom of the mine; It is invented to feed materials at the middle position of the top of the mine house to fill the upper part with tailings, and set water filter pipes at both ends of the mine house for dehydration, which can effectively improve the dehydration effect.
Description
technical field [0001] The invention relates to the technical field of goaf filling, in particular to a multi-point filling method for full tailings in the goaf of a mine. Background technique [0002] After the mining of the mine house is completed, it is necessary to set up filling retaining walls at each outlet of the mine house to close the goaf. Internal feeding for filling. The filling and feeding method adopted in the prior art is single-point filling, specifically, along the length direction of the mine room, a filling point is arranged at one end of the mine room, and a water filter pipe is arranged at the other end. Since some of the residual ore between the outlets of the mine cannot be recovered after the mining is completed, multiple residual ore piles will be formed in the goaf. The quality is poor and the dehydration effect is not satisfactory. [0003] In addition, the internal structure of the goaf will also affect the filling effect. In the prior art, f...
Claims
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IPC IPC(8): E21F15/04E21F15/00E21F15/08B01D29/54G01B11/24G01B11/02
CPCE21F15/04E21F15/00E21F15/005E21F15/08B01D29/54G01B11/24G01B11/02
Inventor 王正英石帅张纪堂刘文华司书波胡军伟何恩亮胡贵发王胜军左世晓石绍飞徐新海杜成伟李春鹏翟利军郭同晓刘滨滨
Owner 临沂会宝岭铁矿有限公司